分类 / 名称
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Siluriformes (Catfishes) >
Doradidae (Thorny catfishes) > Doradinae
Etymology: Ossancora: Derived from the Latin oss, meaning bone, and ancora, meaning anchor, in reference to the shape and articulation of the pectoral spine and posterior cleithral and coracoid processes which resemble the shank and flukes, respectively, of a Danforth anchor; asterophysa: Specific name is derived from the Greek aster, meaning star, and physa, meaning bladder, alluding to the proliferation of diverticula along the periphery of the gas bladder which distinguishes species from Ossancora eigenmanni. An adjective.
环境:氛围 / 气候带 / 深度上下限 / 分布范围
生态学
; 淡水 居于水底的.
South America: Amazonas basin in Bolivia, Brazil and Peru; Ilha do Marajó near the mouth of the rio Amazonas to laguna Yarinacocha, an oxbow lake connected to the río Ucayali; río Mamoré and upper Guaporé, Madeira drainage.
大小 / 重量 / 年龄
成熟度: Lm ?  range ? - ? cm
Max length : 16.8 cm TL 雄鱼/尚未辨别雌雄; (Ref. 111518); 最大体重: 62.00 g (Ref. 111518)
简单描述
检索表 | 型态特徵 | 形态测量图
背棘 (总数) : 2; 背的软条 (总数) : 6. Can be diagnosed from Ossancora punctata by having maxillary barbel with elongate fimbriae inserted in two distinct rows along anterior margin, one dorsally and one ventrally, mental barbels with elongate fimbriae, and anterior nuchal plate reduced, diamond shaped, not sutured to epioccipital. Can be distinguished from Ossancora eigenmanni and Ossancora fimbriata by having the unique combination of gas bladder with numerous diverticula that are thin, moderately elongate (often branched), and grouped in roughly paired, small fascicles along the periphery of anterior face, shoulder and lateral walls of anterior chamber as well as lateral walls and posterior face of posterior chambers (vs. peripheral diverticula absent or few, restricted to anterolateral shoulder and sometimes anterior face of the anterior chamber in Ossancora eigenmanni; terminal diverticula lacking or indistinguishable from other peripheral diverticula (vs. short terminal diverticula present in Ossancora fimbriata; infranuchal plate not greatly expanded ventrally (vs. greatly expanded ventrally, reaching level of posterior coracoid process in adults in Ossancora fimbriata); nuchal foramina absent (vs. usually present, except in some large adults, in Ossancora fimbriata); less than 20 teeth per ramus on premaxilla and dentary (vs. 25-50 in Ossancora fimbriata); mental barbel with elongate fimbriae in single row (vs. two rows in Ossancora fimbriata) (Ref. 92411).
生命周期和交配行为
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
Birindelli, J.L.O., 2011. Ossancora, new genus of thorny catfish (Teleostei: Siluriformes: Doradidae) with description of one new species. Proc. Acad. Nat. Sci. Phila. 161:117-152. (Ref. 92411)
世界自然保护联盟红皮书 (Ref. 130435: Version 2025-2 (Global))
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基于模型的估算
系统发育多样性指数 (参考文献
82804): PD
50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01122 (0.00659 - 0.01911), b=2.95 (2.80 - 3.10), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
营养阶层 (参考文献
69278): 2.8 ±0.4 se; based on size and trophs of closest relatives
回复力 (参考文献
120179): 高度, 族群倍增时间少于 15个月 (Preliminary K or Fecundity.).
渔业脆弱性 (Ref.
59153): Low vulnerability (10 of 100).
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